Abstract: An apparatus and technique is disclosed for promoting or altering the growth, repair or regenerative process of living tissues and cells with an induced magnetic field. The apparatus includes at least one coil of a specific structural arrangement coupled to a current generator for producing a magnetic field and mounted on a flexible contour-conforming composition for application to living tissue. The generator provides current to the coil to produce a continuous or pulsating magnetic field within the region to be treated. A "polaroid" filter formed also of a flexible contour is disposed between the coil and the region to be treated to control flux density. Additional filter(s) can be placed adjacent each other to further control the orientation and density of the flux impinging upon the area to be treated. The number of filters and their arrangement are selected to provide beneficial effects in the area of the tissue to be treated.
Abstract: An electrotherapeutic method of providing electrical stimulation to human or animal tissue. A stimulating pulse train, having a primary frequency of 500 Hz to 100,000 Hz, is coupled to two electrodes attached to the portion of tissue to be stimulated. The train of pulses of the primary frequency are gated on and off so that they are applied and discontinued in predetermined intervals. For neural stimulation, the gating is performed at 0.1 Hz to 200 Hz. For muscle stimulation, the current is provided for predetermined intervals of 0.001 to 100 seconds and is discontinued in alternate intervals for 0.001 to 100 seconds. The stimulating pulse train may be amplitude modulated so that its amplitude rises at the beginning of each on-time period and falls at the end of each on-time period, the rise and fall time varying between 0.5% and 50% of the total on-time of the stimulating current.
Abstract: An electrical inhibitor system is disclosed for suppressing the application of transcutaneous nerve stimulator (TNS) signals during the T-wave portion of a heartbeat. The system includes a sensing circuit which is coupled to detect the R-S waveform produced by the heart during its normal beating pattern. Upon detection of the R-S portion of the waveform, an electrical signal is produced and coupled to timing circuitry to produce a timing signal having a duration in excess of the normal period of the T-wave portion of the heartbeat. The timing signal is to inhibit the output of a transcutaneous nerve stimulator during the T-wave portion of the heartbeat. When the inhibiting circuit and transcutaneous nerve stimulator are coupled to a patient, the system provides an inhibiting signal beginning during the R-S portion of the waveform and extending through the T-wave portion of the hearbeat to prevent application of the output from the transcutaneous nerve stimulator during the vulnerable period of the heart.